20140855

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 30044160

約数和(自身を除く): 9903305

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 665, 977, 1085, 2945, 4123, 4885, 6839, 18563, 20615, 30287, 34195, 92815, 129941, 151435, 212009, 575453, 649705, 1060045, 2877265, 4028171, 20140855]

約数ペア:

[(1, 20140855), (5, 4028171), (7, 2877265), (19, 1060045), (31, 649705), (35, 575453), (95, 212009), (133, 151435), (155, 129941), (217, 92815), (589, 34195), (665, 30287), (977, 20615), (1085, 18563), (2945, 6839), (4123, 4885)]